Internal Restraining Path for Rotor Bearing Stability
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Solution Overview
Problem
Radial rotary piston engines experience inefficiencies and potential damage due to vibrations, especially at high speeds, which can lead to failure of supporting bearings and reduce engine performance.
Innovation Solution
The engine incorporates an inner ring that forms a concentric, internal restraining path with an oval outer ring, confining support bearings to rotate within this path, preventing disengagement and allowing controlled movement, thereby enhancing stability and reducing radial forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If support bearings are allowed to rotate freely on the rotor's inner surface, then the engine can operate with simpler structure, but the bearings may disengage at high speeds causing vibrations and potential damage
Solution Approach 1:
The rotor's inner surface is segmented into two distinct concentric paths: an outer circular path for bearing rotation and an inner circular path acting as a restraining boundary. This segmentation prevents bearing disengagement while maintaining structural simplicity, directly resolving the contradiction between reliability and device complexity.
2Power
If the rotor operates at high speeds, then the engine's power output increases, but vibrations intensify and can cause bearing failure
Solution Approach 1:
The inner restraining path is预先 designed to counteract the centrifugal forces that cause bearing disengagement at high speeds. By providing this preliminary constraint, the system prevents vibrations and bearing failure before they can occur, allowing the engine to operate at high speeds safely.
3Reliability
If no internal restraining structure is added to the rotor, then manufacturing remains simple, but bearing disengagement can occur causing engine damage
Solution Approach 1:
The inner restraining path is merged into the rotor's inner surface as an integrated feature rather than a separate component. This combining approach maintains ease of manufacture while providing the necessary bearing retention, resolving the contradiction between reliability and ease of manufacture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances the engine's ability to manage high-speed rotations by preventing bearing disengagement and reducing vibrations, leading to improved efficiency and extended lifespan of engine components.
Implementation Method 1
the external ring rolls over the inner surface of the rotor so that a linear movement of the traverses is converted to rotation of the rotor
Implementation Method 2
an inner ring that is concentric to the outer ring wherein an outer surface of the inner ring is distant from the inner surface of the outer ring in a distance that corresponds the diameter of the external ring of the supporting bearing, wherein the outer ring and the inner ring form an internal restraining path in which the at least two supporting bearings rotate
Data Source
AI summary
An improvement to a rotor is provided adapted to be rotated by at least two linearly moving support bearings linearly driven by an engine that comprises an outer ring provided on a circumference of the rotor; and an inner ring that is concentric to the outer ring. The support bearings are confined to rotate within a restraining path formed between the outer ring and the inner ring. It is also provided an improved engine having at least two traverses linearly actuated that comprises the improvement.